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China factories

China factory - Nanjing Dingguan Automotive Parts Co., Ltd.

Nanjing Dingguan Automotive Parts Co., Ltd.

  • China,Nanjing
  • Verified Supplier
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China Bus Air Suspension Height Control Valve 53321-Q120 OEM Replacement
China Bus Air Suspension Height Control Valve 53321-Q120 OEM Replacement

  1. China Bus Air Suspension Height Control Valve 53321-Q120 OEM Replacement
  2. China Bus Air Suspension Height Control Valve 53321-Q120 OEM Replacement
  3. China Bus Air Suspension Height Control Valve 53321-Q120 OEM Replacement
  4. China Bus Air Suspension Height Control Valve 53321-Q120 OEM Replacement

Bus Air Suspension Height Control Valve 53321-Q120 OEM Replacement

  1. MOQ： 1
  2. Price： $15/pieces 5-49 pieces
  3. Get Latest Price
Payment Terms T/T
Supply Ability 5000/month
Delivery Time 5-15day
Packaging Details Carton, wooden box, custom packaging
Function and purpose Height adjustment
Control method electronic formula
Connection method Quick-plug type
Material Metal material
Model 53321-Q120
Protection level IP67
Response speed 1-3S
Applicable vehicle models bus
Brand Name Dingguan
Model Number 53321-Q120
Certification ISO 9001+ISO/TS 16949
Place of Origin Nanjing, China

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  1. Product Details
  2. Company Details

Product Specification

Payment Terms T/T Supply Ability 5000/month
Delivery Time 5-15day Packaging Details Carton, wooden box, custom packaging
Function and purpose Height adjustment Control method electronic formula
Connection method Quick-plug type Material Metal material
Model 53321-Q120 Protection level IP67
Response speed 1-3S Applicable vehicle models bus
Brand Name Dingguan Model Number 53321-Q120
Certification ISO 9001+ISO/TS 16949 Place of Origin Nanjing, China
High Light Bus air suspension height valve ，OEM bus air control valve ，Bus air spring replacement valve

Bus Air Suspension Height Control Valve | P/N: 53321-Q120

Product Description

Ensure Optimal Stability, Safety, and Passenger Comfort.

A bus’s ride height is critical to its performance. An overloaded bus can sag, while an empty one rides too high, compromising handling, braking, and comfort. The Air Suspension Height Control Valve, manufactured by Nanjing Dingguan Accessories Co., Ltd., is the intelligent component that automatically corrects this, ensuring a consistent and safe ride under all conditions.

This valve acts as the brain of the air suspension system. It continuously senses the vehicle’s height and automatically adjusts the air pressure in the springs to compensate for changes in passenger or cargo load. By maintaining a constant, optimal ride height, it ensures the entire suspension and braking systems operate as they were designed to.

Key Features:

  • Automatic Leveling: Instantly adjusts to different loads, keeping the bus floor level for improved stability and predictable handling.
  • Enhanced Passenger Comfort: Prevents the harsh ride associated with bottoming out or an over-extended suspension, providing a smoother journey.
  • Critical Safety Component: Maintains correct suspension geometry and braking efficiency, which can be compromised by improper ride height.
  • Direct OEM Replacement: Engineered as a perfect substitute for part number 53321-Q120, guaranteeing a hassle-free, direct-fit installation.
  • Durable Construction: Built with robust, corrosion-resistant materials to withstand constant use and harsh road conditions.

As a direct manufacturer, Nanjing Dingguan Accessories Co., Ltd. delivers superior components with strict quality control.

Invest in the safety and reliability of your fleet. Contact us today for a competitive quotation.

Product Name:

 Height valve

Part Number;

53321-Q120

Quality control:

 ISO 9001+ISO/TS 16949

Size:

standard
Type: Suspension system

Place of origin:

 Nanjing, China

Materials:

 metal

Packaging:

 Paper packaging/custom packaging

Minimum order   quantity:

 1

Application:

 Bus

Status:

 brand new

Cargo transportation:

TNT, EMS, UPS, FedEx, DHL or according to your requirements.

OE:

53321-Q120

 		 Factory quality inspection: 100% inspection


Product details pictures


How to buy the right bus accessories


1.Please provide VIN number
2.Please provide clear photos
3.Please provide the OEM number
4.lf you are unsure, please contact us.



Nanjing Dingguan Auto Parts Co., Ltd.



                                                -- Your reliable partner for bus spare parts.



About Us



Nanjing Dingguan Automotive Parts Co., Ltd. specializes in providing high-quality and cost-effective parts for buses and commercial vehicles. We focus on the global market, have rich experience in exporting bus and truck parts, provide services to distributors and fleet operators, and provide tailor-made solutions to meet different needs.



Warehouse and cargo display


About shipping and packaging


  transportation

TNT, EMS, UPS, FedEx, DHL or as per your requirement.
       packaging

Bubble wrap, cartons, wooden boxes, and pallets are used to avoid damage to goods caused by bumps.

   


common problem


1: Can you provide an accurate price?
   Sure. You need to provide the vehicle VIN number, provide the product OEM code, or provide a clear product photo.

2: What's your minimum order quantity?
    No minimum order quantity, of course, if you buy more items from our company, you can get preferential prices and discounts.

3: What's the delivery time?

 Air freight orders take 5 to 8 days. Sea freight orders take 15 to 25 days.


My advantage

1:High-Quality Bus Components
    Specialized in premium aftermarket bus parts including engines,transmissions, and braking systems, built for durability and performance.
2:Comprehensive spare parts solution
     We offer a full range of bus accessories: filters, suspension components, electrical components, and interior accessories for all major bus brands.

3:  ISO-Certified Manufacturing

Our ISO 9001/TS 16949-certified products ensure strict quality control, reliability, and compliance with international standards.ISO

4: Global Bus Part Coverage

Our products are compatible with leading bus models from Europe, Asia, and the Americas.

5;Extensive product catalog

Engine parts, HVAC systems, lighting, wheels and safety components covering city, intercity and long-distance buses.

 

Contact Us











Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory

  • Business Type:

    Manufacturer,Distributor/Wholesaler,Exporter

  • Year Established:

    2003

  • Total Annual:

    5000000-10000000

  • Employee Number:

    100~200

  • Ecer Certification：

    Verified Supplier

Nanjing Dingguan Automotive Parts Co., Ltd.: Your Trusted Global Automotive Solutions Partner Nanjing Dingguan Automotive Parts Co., Ltd. is an outstanding manufacturer of high-quality automotive parts and a global supplier. We have always been unswervingly committed to excellence and innovation, fo... Nanjing Dingguan Automotive Parts Co., Ltd.: Your Trusted Global Automotive Solutions Partner Nanjing Dingguan Automotive Parts Co., Ltd. is an outstanding manufacturer of high-quality automotive parts and a global supplier. We have always been unswervingly committed to excellence and innovation, fo...

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Get in touch with us

  • Reach Us
  • Nanjing Dingguan Automotive Parts Co., Ltd.
  • Gaoli Auto Parts City, No. 18, Qixia Avenue, Nanjing
  • https://www.bussparesparts.com/

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